| Signal Input
(Video and External
Reference) |
| Return Loss |
>40 dB, 50 kHz to 6 MHz, power on or off |
| Maximum Input |
±5 V DC + peak AC |
| Loop-through Isolation |
>70 dB at FSC |
| Channel Isolation |
>70 dB at FSC |
| Impedance |
>15 kΩ |
| Chrominance Bandwidth |
| Upper |
3 dB point, FSC +500 kHz, ±100 kHz |
| Lower |
3 dB point, FSC -500 kHz, ±100 kHz |
| Vector Phase Accuracy |
Within 1.25° |
| Vector Gain Accuracy |
Within 2.5%, typical |
| Quadrature Phasing |
Within 0.5°, typical |
| Subcarrier Regenerator |
| Pull-in Range |
FSC ±50 Hz |
| Pull-in Time |
Within 1 second |
| Phase Shift with Subcarrier Frequency |
2° ±50Hz |
| Phase Shift with Burst Amplitude Change |
<2° with ±6 dB change from nominal |
| Phase Shift with Input Channel Change |
<0.5° |
| Phase Control Range |
360° continuous rotation |
| Burst Jitter |
<0.5° |
| Display Differential Phase and Gain |
±1° and ±1% |
| Center Dot Clamp Stability |
<0.4 mm spot movement |
| Synchronization |
| Internal |
Composite video with sync ±6 dB of nominal |
| External Reference |
Composite video or CW subcarrier |
| XY Mode |
|
| Input |
Differential, DC coupled |
| Input Amplitude |
2 to 9 V p-p, adjustable full scale deflection 0 dBm for 600W
system, factory set to 0 dBm |
| Maximum Input |
±15 V peak signal + DC |
| Frequency Response |
DC to 500 kHz (Dc to 100 kHz high-gain mode) |
| X and Y Phase Match |
Less than a trace with separation at 20 kHz |
| SCH Mode
(1720 SCH and 1721 SCH Only) |
| Accuracy |
Absolute: ±5° phase at 25°C
Relative: ±2° |
| Acquisition Time |
Less than 1 second |
